3Com 4005 Installation And Maintenance Manual

Also see for 4005: Key Information Guide Datasheet

Contents

3Com 4005 Installation And Maintenance Manual Manual pdf 49 page image

Interface Module Overview 49Interface ModuleOverviewThe Switch 4005 contains fourteen slots in total, with twelve of those slots beingdesignated for interface modules. Fast Ethernet and Gigabit Interface Modules canoccupy any of the slots that are numbered 1 – 12 and can be installed in any order.They cannot occupy slots M1 and M2, which are designated for Switch FabricManagement Modules.Feature ConfigurationProcessTo configure features that affect ports on an interface module, you connect toeither the Web or CLI management interface on the primary Switch FabricManagement Module. You do not connect to interface modules separately. Inaddition, you do not load software on interface modules.Traffic Handling Each interface module learns addresses of locally attached devices and maintains adatabase. When the source port and destination port of a given packet are locatedon the same interface module, the packet remains local to the interface moduleand is switched or routed between these ports.However, when the destination address of a given packet is not local, the interfacemodule sends the packet over the backplane to the primary Switch FabricManagement Module, which switches or routes the packet to the proper moduleor floods it.Hot Swap All Fast Ethernet and Gigabit Ethernet Interface Modules support hot swapping,which means that you can remove modules and install modules while the chassisis powered up and operating. Hot swapping does not interfere with the generaloperation of the Switch. However, see the caveats and cautions in the “SafetyPrecautions” and “Handling Precautions” sections.Fast Ethernet InterfaceModules3Com offers two Fast Ethernet modules to suit different cabling infrastructures.This section outlines the physical attributes of each module.8-port 10/100BASE-TXFast Ethernet Module Model Number — 3C16828 Size — Occupies one slot in the Switch 4005 chassis Functionality — Layer 2 and Layer 3 switching Physical features: Diagnostic LED shows module status. Release button and LED are used to remove the module. Eight 10/100BASE-TX shielded RJ-45 ports provide a 10 Mbps or 100 Mbpsconnection. Ports auto-negotiate for connection speed, duplex mode, andflow control. Module and Port LEDs — See Table 11 on page 52 for definitions. Front faceplate — See Figure 19 on page 51 for details. Cabling requirements: Category 5 UTP or STP. Maximum Segment Length for half or full duplex is 100 m (328 ft). All RJ-45 ports on the module have automatic MDI/MDI-X detection.